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Getting rendering comperssion exactly right for TV?

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micky smeds
Getting rendering comperssion exactly right for TV?
on Nov 26, 2011 at 12:30:01 pm


soo, I'm making a commercial for TV, and honestly, this is the first time I make it, and they are really strict getting those compressions right for the files.
Really not an issue for the moment, but already got a list of the requirements, so thought I would share it and see if you could help me out getting them right.. :)

Here are the requirements:

MPEG-2 parameter Support

Video stream type:
MPEG-2 Program Stream

Video size:
720x576 pixels

25 fps

Rate control mode: Constant (CBR) and variable bitrate (VBR)

Bitrate: max 15 Mbit/s

Profile: Main profile & main level (MP@ML)

High profile & main level (HP@ML)

Video format:

Encode mode:
Interlaced, top field first

YUV format:
4:2:2 or 4:2:0

Audio stream type:
MPEG-1 Audio Layer II

Audio channel mode:

Audio sampling frequency:
48 kHz

Audio bitrate: 384 kbit/s




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Tudor "Ted" Jelescu
Re: Getting rendering comperssion exactly right for TV?
on Nov 26, 2011 at 2:05:44 pm

The only thing you need for initial work is the framesize and frame rate- you have PAL specifications, 720x576 @ 25 fps. You can setup your AE project taking these in account. One other thing you need to figure out is the frame aspect ratio- 4:3 or 16:9. This will point you to the pixel aspect ratio for SD PAL- 1.09 or 1.45 (widescreen).
The other stuff you need for final compression. Render an uncompressed format (with 48kHz audio) in AE and bring that in Adobe Media Encoder. Use the specs you got to setup your output.

Tudor "Ted" Jelescu
Senior VFX Artist

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micky smeds
Re: Getting rendering comperssion exactly right for TV?
on Nov 30, 2011 at 7:52:10 pm


one more question,

What is a GOOD uncompressed file to render out form AE so I can compress it to the right format in Adobe Media Encoder?

Thank you!!

- M

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